Rainbow Foods is one of the retail grocery stores operated by Roundy s Supermarkets, a grocery supplier. The store offers a wide range of products, including bakery, dairy, deli, floral and frozen products, general merchandise, grocery items, health and beauty products, meat, produce and alcohol. Its bakery products include cakes, breads, pastries and ready-to-eat snacks. Apart from Rainbow Foods, Roundy s Supermarkets owns and operates more than 130 retail grocery stores in Wisconsin, Minnesota and Illinois. It operates Pick n Save and Copps Food Center retail grocery stores. In addition, the company operates several distribution centers in Wisconsin. Its private label brand encompasses more than 2,000 items. Roundy s Supermarkets was founded in 1872.